Night lock



Dec. M 392% A. C. ANDERSEN NIGHT LOCK Filed Dec. 14, 1921 I N VEN TOR.

A TTORNEY.

Patented De'c. 16, 1924.

ANDREW CHRISTIAN ANDERSEN, OF DETROIT, MICHIGAN, ASSIGNOR TO TERNSTEDTMANUFACTURING COMPANY, 015 DETROIT, MICHIGAN,

GAN.

A. CORPORATION OF MICHI- NIGHT LOCK.

Application filed December 14, 1921. -Seria1No. 522,211.

T 0 all whom it may concern Be it known that I, AxDREw CHn s'riAXANoEnsnN, a citizen of the United States, residing at Detroit, in thecounty of \Vayne and State of Michigan, have invented certain new anduseful Improvements in Night Locks, of which the following is aspecification.

This invention relates to night locks and especially a night lock. foruse on carriage door locks. Perhaps the term night lock seems a littlemisplaced in connection with carriage doors, but the mechanism sodesignated is in its general principle of operation precisely the sameas the mechanism used for night locking house doors.

It is the object of the invention to provide a simple-mechanism whichwill'serve the double function of affording a lock for the outsideretractor which may be actuated from the inside'by athumb turn and fromthe outside by a pin tumbler lock'or other lock. This generalcombination is not broadly new but it is believed that the embodiment ofthe locking dog for both the thumb turn and the kev barrel in a singlemember which is actuated by the key barrel and the thumb turn at widelyspaced points is novel. Furthermore, the arrangements and functions ofthe specific parts are thought to be new.

In the drawings.

Fig. 1 is a. rear elevation of the lock.

Fig. 2 is a rear elevation of the lock with the back plate removed.

Fig. 3 is a section on the line 33 of Fig. 2.

Fig. 4 is a ,section on the line 44 of Fig. 2. 4 4

a designates the front plate; 7) the face plate and c the-back plate. (Idesignates the swinging lever; f the body of the bolt. and g the bolthead. The construction of the bolt is in no way claimed in thisapplication but is made the subject matter of a copending application.No. 522.210 for the reason that the bolt construction is of generalapplication, no matter what the character of the night lock or whether alever, rotary' spindle or other actuating member is usedto retract thebolt. 1

This sliding bolt is actuated from the outside of the door by theoutside roll-back h which is provided at the opposite side o'f-its hubwith the abutment i. A hub j is located above the bolt and journaled inthe face plate by being set therein. This hub j has a segmental slot iscut inits periphery for a purpose to be described. A squared opening171. is located in'the end of the hub and in which is arranged to engagethe squared spindle of the pin tumbler lock cylinder (not shown). Thelock will be accessible from the outside of the door.

On the inside of the door and on the out-- side of the face plate of thelock is a thumb turn lever n connected with the disk 0 which has a crankportion 71 and a toothed portion The: turned-up big or crank portion-fits into the perforation r in the; heel of the locking dog or yokeplate .5- which is pivoted by the pin it at the center of the case. 1:designates a spring having an elbow adapted to engage in the gulletsbetween the teeth of the disk so as to hold the locking dog yieldinglyin any'given position of adjustment. One end of the yoke plate orlocking dog engages against the abutmentz'. of the outside retractorwhenthe parts are in the position shown in F ig. 2. This locking dog may beswung clockwise. around its pivot either by turning the thumb turn 12.or by turning the key hub j. \Vhen the key hub is turned-by theinsertion of. the key in theoutside of the door. this key hub may berotated counterclockwise to rotate the lorking'paw'l clockwise. Thiswill withdraw the arm at of the yoke plate from the path of the outsideretractor and will also turn the thumb turn.

The segmental slot b, which is of substantially 90 degrees. plays animportant role hereas it permits thekev hub to be turned through a 90degreeueturn movement to its initial position to'permit the pin tumblerlock key to be ti ithdrawn i from the lock. This is necessar \"because.as is well known, a pin tumbler lock key -ean only be withdrawn when thecylinder is in one position and the pin tumbler sections register.Furthermore, a pin tumbler lockeannothave its barrel turned by someother member that is coupled up with it for it requires akey to line upthe ends of .thelpin tumbler sections with'the barrel periphery *torelease thelock'. Now withthe slotted lock hnbthat is used as anactuator for the. locking dogor yoke plateJthethumb turn can be turnedcounterclockwise to cause the crank p to rotate the docking dogclockwise, yet the slot 7: in the key lock hub affords enough lostmotion for the end of the yoke so that 'thelbarrel of the pintumblerlock is in no Way afiected. v From theabove description llLWlllbe ap;

parent that t he night lock meehanism iscomparatively 's'i'n'i 'ile'andpractically a'll'of the parts are stampings with the exception of thekey lock hub which may be an automatic machine screw product. It. makesno d fference whether thelocking dog is pivotedto 4 yoke, and

' plate engaging the the front-plate or the back plate I have preferredto show the locking dog or yoke ina bolt construction in which thelocking dog or yoke is mounted on. the front plate,

j but this is simply optional.

:lVhat-I claimisz i I 1. In a lock, the combination-of a case, a slidingbolt guided therein, an outside bolt retractor, a locking dog in theform. of a retractor to dog the same, a locking member engaging with theplate at one point for actuating thesame, and an mside turnmen'iber-engagmg the plate at a remote point and-arranged to turn the.dog positively into dogging position or into non-dogging-position, A

12. A look, having in combination, a case, a bolt guided therein, anoutside retractor, and a single pivoted locking dog in the form of ayoke-like plate provided with anarm adapted to stop the retractor, akey-operated member engaging the pivoted vdog at one'point and an insidecontrol member enand a'locking dog in the form of a yoke .plateextending fron'i. one side of the-bolt to the other provided with onearm, adapted to dog the retractor, v

and a key-operated member engaging'one of the armsofthe a thumb-actuatedmember engaging near the other arm-of the yoke.,.

r. bolt guided therein, I anda locking dog in vthe tormof yoke,.

v5, A lock. having in .combinati-on ease, a bolt shdable thereon. anontsideret-ractor,

and a -locki ng dog in the form of a flat yoke plate provided with aheel, one arm ofthe yoke plate .arrang'edlto 'dog the'retractor, akey-operated =member' engagmg the other ,arm of the yokeplate, and aninside control member engaging theh'eel' the yoke plate.

6. A look. having in combination, a case, an outside retractor,

i ng in combination. a case, a bolt slidable therein. an outsideretractor,

provided with an arm adapted to. dog the retractor, akey-'operatedjmember arranged t engage t e 1 th. a the-y ke, an n insidecontrol me I berfarr'anged to operate upon an i termediate pointof theyoke that dogs the ret'ractor.- v I 7. A look, having in combination, acase,

a bolt guided thereiman outside retractor,

and a locking dog in the form of a yoke pivoted 'near its center, akey-operated member having a lost motion connection with one arm of theyoke while one arm 01 the yoke may engage the retractor to, dog thesame, and an insidecontrolmernberenvgaging the-yoke at; a'point remotefrom the key-operatedfmember. 4 v

S. A lock, having in combination, a'case, a bolt guided therein,anputside retractor, and a locking dog pivotedlnear its. center andshaped in the form of-a yoke provided with aheel, onefof the arms of theyoke arranged to engage; the retractor to dog the same, a key-operatedmember engaging the other arm of'the yoke and} rovidedwith a lost motionconnection, an an in side control me b ngagin t e h l ith yo 9. A look,having iiiic ombinationfa case. a bolt guidedtherein, an outsideretractor. and a locking-dog in the form of a yoke pivoted near its.jeenter and provided with a heel, one anno'tthe yoke arranged to engagethe retraetorjto dogthesame, a keyoperated slotted hub engaging theother arm of the pivoted yoke and having a lost motion connection due tosaid slot, and an inside control member engaging adjacent thearni oi"the yoke that dogs the retractor.

10. A lock. having in combination. a case, a boltguided therein, anoutside retractor. and a dog in the form of a yoke pivoted near itscenter and having a heel. one arm of the dog arrangedto dog theretractor, a key-operated slotted hub engaging the other arm of the yokeand provided with a lost motion connection therewith due to the slot inthe hub. and an inside control member engaging the heel of the dog andarranged to turn the dog into dogging position or out ofdoggingposition.

. 1]. A lock. having in combination, a case, a bolt guided thereinQanoutside retractor on one side otthebolt, a locking dogin the form ofa,relativ ely large plate extending from one side of the bolt to theother, and provided with a part on one side of the bolt for engag ng anddogging the outside ,re- 3 tractor, andprovided with a second part onthe other side of the bolt, with which a lock and an inside controlmember arranged to engageathird portion of the dog for operating thesame from the inside of the door.

. In testimony whereof I aflix my signature.

may beconnectedon a door having a lock.

